import java.util.*;


public class Solution7 {
    /**
     * 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
     *
     * 
     * @param nums int整型一维数组 
     * @param target int整型 
     * @return int整型
     */
    public int search (int[] nums, int target) {
        // write code here
        int left = 0;
        int right = nums.length-1;
        while(left <= right) {
            int mid = (left + right) / 2;
            if(target == nums[mid]) {
                return mid;
            } else if(nums[mid] < target) {
                left = mid+1;
            } else {
                right = mid-1;
            }
        }
        return -1;
    }
}